12000220031 has 8 divisors (see below), whose sum is σ = 12525834624. Its totient is φ = 11474927640.

The previous prime is 12000220021. The next prime is 12000220061. The reversal of 12000220031 is 13002200021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12000220031 - 2¹⁸ = 11999957887 is a prime.

It is a super-2 number, since 2×12000220031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000219994 and 12000220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000220021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825 + ... + 154946.

It is an arithmetic number, because the mean of its divisors is an integer number (1565729328).

Almost surely, 2^12000220031 is an apocalyptic number.

12000220031 is a deficient number, since it is larger than the sum of its proper divisors (525614593).

12000220031 is a wasteful number, since it uses less digits than its factorization.

12000220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161101.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12000220031 its reverse (13002200021), we get a palindrome (25002420052).

The spelling of 12000220031 in words is "twelve billion, two hundred twenty thousand, thirty-one".